If it's an ACL that's different. I may have missed it - but I haven't seen anything confirming that.
What I've seen is it's an MCL, in which case I'd expect him to be 100% healthy, and bigger & stronger than last year.
I think people are forgetting Lingard was solidly above Harris on the depth chart before getting hurt. Lingard was getting carries, returning kicks, playing special teams - coaches were trying to find ways to get him on the field.
Harris seems very much a change of pace RB. He'll hit some home runs for sure, but I don't think he's physical enough to be an every down RB.
Lingard is the size/speed/physical combo that is a better fit to get more carries. And his pass catching is underrated.
I think it's the opposite. Camron and Lorenzo are about the same weight, but Camron is 2 or 3 inches shorter. As far as physical-ness, I'll take the shorter stouter RB every day. I know Lorenzo has put on some weight, but he is still a bit thin in the hips to be an every down RB.